<?php

a();

function a() {
                       
    $a1; $a2;
    b(&$a1, &$a1, $a1);
}

function b(&$bp1, &$bp2, $bp3) {    
    ~_hotspot0;                     // u{(b.bp1, b.bp2, b.bp2_fs, b.bp1_fs) (b.bp3, b.bp3_fs)} a{}
                                    
}


?>
